I'm new to dcc but I thought that it was a constant when it comes to lighting. I have a digitrax AR583 decoder in an aritso mikado. 8amp booster digitrax powered by digitrax ps2012. Problem when the loco is not moving lights will come on bright, start moving a slow speed and all the lights on the loco go dim and flicker. A faster speed the lights will be normal bright like an old analog. All on stainless track just a 10' section for testing. Digitrax said that they didn't know what might cause it, but if I thought it was a bad board I could send it back to get checked. Any ideas or thoughts?